Constant

A name-value constant entry added to documents by ConstantTransformer.

importerJavadoc: Constant

Notes

Defines a single constant name-value entry for the ConstantTransformer. Multiple values can be assigned to the same constant name by repeating the constant entry.

Usage

YAML

name: string
onSet: APPEND
values:
  - string

JSON

{
  "name": "string",
  "onSet": "APPEND",
  "values": [
    "string"
  ]
}

XML

<constant>
  <name>string</name>
  <onSet>APPEND</onSet>
  <values>
    <value>string</value>
  </values>
</constant>

Properties

Property	Type	Required	Default
name	string	No	-
onSet	enum	No	-
values	string[]	No	-

Property Details

name

Name of the field the constant values are written to.

onSet

What to do if a target field of the same name already exist.

Allowed Values

• APPEND
• PREPEND
• REPLACE
• OPTIONAL

values

One or more values to assign to the field. Several values make it multi-valued; how they combine with any existing value is governed by onSet.